Problem with yearly graph

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marmata
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Joined: Thu Feb 08, 2007 8:17 am

Problem with yearly graph

Post by marmata »

Hi all,

I'm using the debian package for cacti 0.8.6i. Everything works well, except two weird things.

1) In all the graphs, I can read the daily, weekly and monthly graphs, but the yearly graph is empty, altought the text part seems ok. This is shown on attached graph.

2) I use the graph template in/out bits with 95 percentile. On some graphs, the calculation is wrong, so that the red line that should be graphed, would go outside the limits. This is also shown on attached graph.

Any hints?
Thanks!
Attachments
95th percentile calculated incorrectly
95th percentile calculated incorrectly
cacti 95 percentile.png (135.76 KiB) Viewed 902 times
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gandalf
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Re: Problem with yearly graph

Post by gandalf »

marmata wrote:Hi all,

I'm using the debian package for cacti 0.8.6i. Everything works well, except two weird things.

1) In all the graphs, I can read the daily, weekly and monthly graphs, but the yearly graph is empty, altought the text part seems ok. This is shown on attached graph.
Please go back on screen to see the "normal" graph. Then, please increase the "Preset" time step by step and tell us, what happens
2) I use the graph template in/out bits with 95 percentile. On some graphs, the calculation is wrong, so that the red line that should be graphed, would go outside the limits. This is also shown on attached graph.

Any hints?
Thanks!
This is a well known issue with auto-scaling. I'm not sure if this was fixed in latest rrdtool releases. Not a cacti thingy
Reinhard
marmata
Posts: 2
Joined: Thu Feb 08, 2007 8:17 am

Re: Problem with yearly graph

Post by marmata »

gandalf wrote:
marmata wrote:Hi all,

I'm using the debian package for cacti 0.8.6i. Everything works well, except two weird things.

1) In all the graphs, I can read the daily, weekly and monthly graphs, but the yearly graph is empty, altought the text part seems ok. This is shown on attached graph.
Please go back on screen to see the "normal" graph. Then, please increase the "Preset" time step by step and tell us, what happens
I did this, and it seems that everything is displayed correctly. You'll find attached presets for 2 months, 6 months and 1 year (the server is collecting data since 3 days only, so most of the graphic is blank!)
marmata wrote:2) I use the graph template in/out bits with 95 percentile. On some graphs, the calculation is wrong, so that the red line that should be graphed, would go outside the limits. This is also shown on attached graph.
gandalf wrote:This is a well known issue with auto-scaling. I'm not sure if this was fixed in latest rrdtool releases. Not a cacti thingy
Reinhard
Well I think that the 95th percentile should however be less than that. Take the daily graph. The Maximum spike is 62Mbits, how can the 95th percentile be 85 Mbits? Or is it the sum of inbound+outbound, and not the higher of the two?
Attachments
1 year preset
1 year preset
1 year preset.png (43.38 KiB) Viewed 889 times
2 months preset
2 months preset
2 months preset.png (45.56 KiB) Viewed 889 times
6 months preset.png
6 months preset.png (44.04 KiB) Viewed 889 times
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gandalf
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Joined: Thu Dec 02, 2004 2:46 am
Location: Muenster, Germany
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Re: Problem with yearly graph

Post by gandalf »

marmata wrote: Well I think that the 95th percentile should however be less than that. Take the daily graph. The Maximum spike is 62Mbits, how can the 95th percentile be 85 Mbits? Or is it the sum of inbound+outbound, and not the higher of the two?
It is the sum, but you may change this, if you want. See http://www.cacti.net/downloads/docs/htm ... _VARIABLES, chapter on bandwitdh summation.
And please wait some few days for the yearly graph. I'm quite sure it will come up soon
Reinhard
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